One of the subjects being studied at the New York meeting was the "Hygiene of swimming pools". 2022 Zodiac Pool Systems LLC - All rights reserved. Designed for 21st-century pool owners, meet our smartest, most advanced robotic pool cleaners, here to deliver a whole new level of pool cleaning performance. Heavy leaf litter and debris are no problem with our thoughtfully designed pressure-side pool cleaners. 12051208. Our top sellers are the #1 choice for pool owners and their families, for their ease of use, advanced scrubbing and brushing capabilities, and superior filtration system. An excellent option for pools with a dedicated pressure line, most pressure pool cleaners Cookies keep the website secure, allow us to personalize, and make your browsing experience more efficient. With features like a high-speed scrubbing brush, programmable cleaning schedules and remote-control functions, youre sure to find a pool vacuum robot for your pool. This type of pool cleaner pumps water out of the pool via its skimmer or drains, uses it for locomotion and debris suction, then returns it after being filtered via pool return or outlet valves. B. Nicols, Anthony M. Grimason, "Cryptosporidium excystation and invasion: getting to the guts of the matter", Okhuysen PC, Chappell CL, Crabb JH, Sterling CR, Dupont HL "Virulence of three distinct Cryptosporidium parvum isolates for healthy adults", Journal of Infectious Diseases, Volume 180, Issue 4, pp. The chip causes the machine to change direction when it reaches a wall or the water surface after climbing the pool walls. Gordon Nichols, Rachel Chalmers, lain Lake, Will Sopwith, Martyn Regan, Paul Hunter, Pippa Grenfell, Flo Harrison, Chris Lane, Jennifer L. Clancy, Karl G. Linden, Randi M. McCuin. 50 Kw / Generac Generator / 120/240 Volt / Propane / Natural Gas: 15 Kw Katolight Diesel Generator (Very Low Hours), 50 Kw Kohler Fast Response Propane Or N/G Generator Very Low 353 Hours, 150 Kw / 3208 Caterpillar Diesel Generator. In 1957, it referred to its report as "Recommended Practice for Design, Equipment, and Operation of Swimming Pools and Other Public Bathing Places". University of North Carolina Charlotte Associate Professor James Amburgey conducted many tests to evaluate existing swimming pool filters and he concluded that they have been extremely ineffective in removing Cryptosporidium in most cases. Clean your pool regardless where you are the Polaris PCX 868 iQ offers iAquaLink app control along with enhanced maneuverability and vigorous scrubbing for thorough cleaning. With powerful scrubbing brushes and vacuuming action, pool vacuum robots keep your pool and free of tough dirt and debris. Yes, I'd like to receive promotions and updates to my email. You can feel good about reducing your energy use while also saving hundreds of dollars a year on your electricity bill. Pentairs family of robotic pool cleaners all offer a top-access filter basket, making debris removal simple. The CDC was founded (in 1946), followed by the Cabinet-level Department of Health, Education and Welfare (in 1953), now the Department of Health, and Human Services and its eleven operating divisions, the National Health Service Corps (in 1977), and a variety of private and non-profit aquatic organizations such as the National Spa and Pool Association (in 1956), now the Association of Pool and Spa Professionals the National Swimming Pool Foundation (in 1965). Simply add a password to finish creating your Maytronics account. [1] It swept and scraped the bottom of a cistern or tank and, through a combination of suction and manipulation of the water pressure, was able to separate and remove sediment without removing the water. Location is disabled by your browser. [5], The first robotic pool cleaner that used electricity was invented by Robert B. Myers in 1967. As part of their advanced design, our best performance Dolphins also include cloud-connectivity via 'MyDolphin Plus' mobile app, giving you ultimate cleaning and complete control anytime, anywhere. "Neutralization of cryptosporidium parvum sporozoites by immunoglobulin and non-immunoglobulin components in serum-Hill", BD. There was an error loading the page; please try to, Brand New Amphitrite Sweep Hose - Fits Polaris 280 380 Pool Cleaners. The cleaner traces a random course around the pool. These machines effectively diminish the suction of the main pump - using them will increase the electricity costs and require the main pump and filter system to be serviced more frequently. Dawson AM, Blewett, DA. Spend less time cleaning your pool and more time enjoying the clear, inviting water with a robotic pool cleaner from Pentair. [7] The design is used in the Polaris Pool Cleaner, a commonly used pool cleaner amongst modern pool owners. V. Smith, Rosely, A. Our WAVE range offers professional pool cleaning for large and extra-large commercial pools. Ushering in the next evolution of intelligent robotic pool cleaners, the Polaris VRX iQ+ provides calculated cleaning for a brilliantly clean pool you can clearly see. Undersink & Countertop Filtration Systems, Residential Softening & Filtration Valves, Recreational Vehicle Plumbing Accessories, Turf Management & Pest Control Accessories, Water Treatment Solutions for Drinking Water, Water Treatment Solutions for Office Water & Coffee, Water Treatment Solutions for Warewashing, Residential Filtration Solutions Customer Service, Commercial Filtration Solutions Customer Service, Prowler 930W Robotic Inground Pool Cleaner, prowler 920 robotic inground pool cleaner, prowler 910 robotic aboveground pool cleaner, kreepy krauly prowler 820 robotic inground pool cleaner, Warrior SE Robotic Inground Pool Cleaner, warrior sl robotic aboveground pool cleaner, Warrior si robotic inground pool cleaner, kreepy krauly prowler 830 robotic inground pool cleaner, Pentair Medical Carrier Transparency Reports, Do Not Sell My Personal Information - CA Residents Only. 80 KW MERLIN/MITSUBISHI DIESEL GENERATOR: / SINGLE AND 3 PHASE: 125 Kw / Kohler Diesel Generator. Cookies keep the website secure, allow us to personalize, and make your browsing experience more efficient. A cleaning system using potable water shall be provided with an approved backflow protection device as required by the California Department of Public Health under Sections 7601 to 7605. and the Conference of State Sanitary Engineers 1926, Swimming Pools and Other Public Bathing Places Report of the A.P.H.A. Maytronics is a global leader in the robotic pool cleaning business. William R. Peterson, PH.D. and Renee E. Berman. Scum and floating matters may be infectious material and should always be removed as soon as possible after they are observed. Large amounts of debris or larger debris such as leaves and sticks can easily clog the unit or its pump basket. thats built to handle the tough job of cleaning your pool, robotic pool vacuums eliminate Fiona L. Henriquez, Thomas A. Richards, Fiona Roberts, Rima McLeod and Craig W. Roberts "The unusual mitochondrial compartment of Cryptosporidium parvum" -X. James E. Amburgey, Kimberly J. Walsh, Roy R. Fielding and Michael J. Arrowood "Removal of Cryptosporidium and polystyrene microspheres from swimming pool water with sand, cartridge, and pre-coat filters". This cleaning cycle is set up to complete before the pumps are turned back on. By continuing to browse, you accept the use of such cookies. [14] Twelve other reports were published through 1981. Each of our bestselling Dolphins provide pool owners with a hassle-free cleaning solution of unmatched performance and longevity. Using water pressure, pressure-side cleaners not only keep your pool However, its lack of authoritative power is implied by the changing description of what was limited to their recommendations or suggestions and the expressed purposes in issuing them. Any visible scum or floating material on the surface of a pool shall be removed within 24 hours by flushing or other effective means. The Centers for Disease Control and Prevention in Atlanta, Georgia, on a grant provided by the National Swimming Pool Foundation (NSPF), published the first uniform Model Aquatic Health Code (MAHC).[when? No dealers found. A few, but not all of these recommended ordinances and regulations, related to the use of a vacuum, though the first that included any specificity in 1923 at least required a certain level of clarity. If you wish to learn more, you may visit our. In 1883 John E. Pattison of New Orleans applied for a "Cistern and Tank Cleaner" and the first discovered patent was issued the following year. Discover Maytronics' activate & enhance, the most filter media in the world, for a crystal clear water experience and healthier swimming for you and your loved ones. as much power as a single incandescent lightbulb. But for a variety of reasons none of these recommendations were adopted, at least not formally or completely adopted. [citation needed]. These machines may also be directed by sensors located in the bump bars which, on contact with objects such as a wall, cause a reverse in direction, with a small offset allowing it to move one machine's width over on each crossing of the pool. 2 California Building Code. They also direct the particles into the internal filter bag. It plugs into a Some more sophisticated models can cost over $1,000. Fixed pipe connections for attachment of suction cleaner to pump suction should be of ample size to reduce friction to a minimum, and the cleaner and all removable connections should be designed to provide a maximum velocity at the suction nozzle. The Polaris PCX 852 offers thorough cleaning coverage of your pools floor, walls and waterline while providing superior debris collection and scrubbing thanks to the advanced Double Helix brush design. B. This high-pressure water is used for locomotion and debris suction to exploit the Venturi effect. Would you like to receive exclusive offers? Each health and safety segment was assigned to a committee to study it and draft a proposed module open for public comment before being adopted and recommended to the nation's 3200+ state and local health agencies that enact ordinances and regulations for swimming pools and spa and other aquatic facilities, inspect and monitor the facilities, and enforce the regulations. Our best-value Dolphins are lightweight and compact. We break down the criteria to help Its important to remember that robotic pool vacuum cleaners are available for both inground and aboveground pools, so make sure that you have the right type of cleaner for your specific type of pool. Section 3140B, Cleaning Systems, Florida Department of Health section 64E-9.007 Recirculation and Treatment System Requirements, , James E. Amburgey, Jonathan M. Goodman, Olufemi Aborisade, Ping Lu, Caleb L. Peeler, Will H. Shull, Roy R. Fielding, Michael J. Arrowood, Jennifer L. Murphy, and Vincent R. Hill, "Are Swimming Pool Filters Really Removing Cryptosporidium?' Find and buy original quality replacement parts and accessories designed to help you to get the most from your Dolphin and your pool. [citation needed]. Visible scum or floating matter on the swimming pool surface shall be removed within 24 hours by flushing or other effective means. With a rugged design Suction-side cleaners are the least expensive and most widely used pool cleaners. (Very Low Hours 810 Hours). Please visit craigslist from a modern browser. The University of North Carolina at Charlotte, United States Patent and Trademark Office, Learn how and when to remove this template message, Centers for Disease Control and Prevention, "US Patent 302,353 Cistern and Tank Cleaner", "US Patent 1,056,779 Portable electric pool cleaner", "US Patent 2,141,811 Swimming pool cleaner", "US Patent 3,032,044 Automatic swimming pool cleaner", "US Patent 3,439,368 Swimming Pool Cleaner", "US patent 3,822,754: Automatic swimming pool cleaner", "US Patent 3,822,754 Automatic Swimming Pool Cleaner", "Swimming pool care, repair offer wave of job potential", https://en.wikipedia.org/w/index.php?title=Automated_pool_cleaner&oldid=1065017375, Self-contradictory articles from August 2020, Articles with unsourced statements from April 2017, Articles needing additional references from September 2020, All articles needing additional references, All articles with vague or ambiguous time, Vague or ambiguous time from September 2019, Creative Commons Attribution-ShareAlike License 3.0. Pentair robotic cleaners are also more energy efficient than other cleaners because they don't rely on your pool's pump or a booster pump. Thulin JD, Kuhlenschmidt MS, Rolsma MD, Current WL, Gelberg HB "An intestinal xenograft model for Cryptosporidium parvum infection". 1275128. Moredun Research Institute, Edinburgh, "Characterization of cyclophosphamide-rat model of cryptosporidiosis", Rehg JE, Hancock ML, Woodmansee DB., James E. Amburgey, Kimberly J. Walsh, Roy R. Fielding and Michael J. Arrowood, B T Croll, C R Hayes, C J Wright, S Williams, and D. Rowlands, Kuan Mu Yao, Mohammad T. Habibian, and Charles R. O'Melia, This page was last edited on 11 January 2022, at 10:57. Apple and the Apple logo are trademarks of Apple Inc., registered in the U.S. and other countries. The United States Patent and Trademark Office refers to a cistern cleaner patent filed (though never issued) as early as 1798. Paul A. Rochelle, Steve J. Upton, Beth A Montelone and Keith Woods "The response of Cryptosporidium parvum to UV light", James E. Amburgey "Removal of Cryptosporidium-Sized Polystyrene Microspheres from Swimming Pool Water with a Sand Filter with and without Added Perlite Filter Media", Journal of Environmental Engineering, Volume 137, Issue 12, December 1, 2011, pp. Clearness: At all times when the pool is in use the water shall be sufficiently clear to permit a black disk six inches in diameter on a white field, placed on the bottom of the pool at the deepest point, to be visible from both sides of the pool when the water is quiet. cleaner that will have a minimal impact on your energy consumption. Wave Dolphins minimize interference, while providing maximum performance and ease of use, making them the ideal choice for any commercial pool. They attach to your pools circulation system and collect debris in an Report of the Joint Committee on Bathing Places of the A.P.H.A. [8], Independently from his American counterparts, Ferdinand Chauvier, a hydraulics engineer who emigrated to South Africa from the Belgian Congo, introduced the Kreepy Krauly in Springs, South Africa, in 1974. Its last report in 1981 was called "Public Swimming Pools: Recommended Regulations for Design and Construction, Operation and Maintenance". The requirement of a booster pump makes pressure-side cleaners the most expensive in terms of electricity use. They have two internal motors: one to suck in water through a self-contained filter bag and eject the filtered water back into the pool, and another that is a drive motor connected to tractor-like rubber or synthetic tracks and "brushes" tied by rubber or plastic bands to a metal shaft. They are powered solely by the main pump of the pool and utilize the pool's filter system to remove dirt and debris from the water. Some electric robotic machines use brushes made out of polyvinyl alcohol (PVA), which has an adhesive quality that allows the unit to cling to the walls, steps, and floors. Hose flushing follows the scrubbing. The APHA has tried to develop a uniform aquatic health code, or what is referred to for years as referenced above, and published short reports annually from 1920 through 1925 that it simply referred to as "Report of the Committee On Bathing Places". They include a top-access filter system with quick water release, and are super-easy to handle and carry, making sure your pool stays spotless and your pool time as hassle-free as possible. The smart navigation system on the product makes it possible to cover the entire area with ease. This is the least expensive and most popular type of cleaner, and it traces a random course around the pool. As the circulation pumps generally operate such cleaners, they may be classed as an adjunct to the recirculation system. A variety of states and jurisdictions have codified the requirement of inclusion of an independent vacuum cleaner, including the two states with the highest number and concentration of both residential and public pools: California: 2010 Title 24, Part 2, Vol. Huw. Swimming pool cleaners evolved from the water filter and early cistern cleaners. By continuing to browse, you accept the use of such cookies. Section 3140B, Cleaning Systems: A vacuum cleaning system shall be available which is capable of removing sediment from all parts of the pool floor. [6], The pressure-side cleaner was invented by Melvyn Lane Henkin in 1972. It was not until 1926 that the first true report was issued and later published in the Journal of the American Public Health Association. Franz J. Maier "A System for Fluoridating Individual Water Supplies". Pentair robotic pool cleaners are fast, reliable and efficient. You need a cleaner that performs without consuming too much energy, and our robotic pool cleaners deliver simply plug into a GFCI outlet and press start. Although the feature is not necessary for adequate pool cleaning, it saves energy and improves cleaning efficiency. The combination of these three natural principles and an internal mercury switch that tells the microchip that the unit has gone from a horizontal to a vertical position allows it to change direction from ascending to descending the wall at pre-programmed intervals based on the average height of swimming pool walls. You must enable JavaScript to use craigslist. [3], In 1953, another notable suction-side pool cleaner was created by Joseph Eistrup, who called his invention "Pool Cleaner". In 1912, coincidentally the same year when the United States Patent and Trademark Office issued the first patent for a swimming pool cleaner, the Sanitary Engineering Section of the APHA convened in New York City to lay the groundwork for the first recommended pool and spa regulations. From residential and business solutions that help people move, improve and enjoy their water, to our sustainable industrial applications, Pentair makes the most of life's essential resources. GFCI outlet, which makes robotic options more energy efficient than other cleaners, using only In 2005 the CDC, in response to growing concern and feared epidemic with the pathogen Cryptosporidium, much like the APHA did in 1912, gathered many of the United States' foremost medical and scientific experts to study the concern for aquatic health. Pressure-side cleaners are better suited for handling a heavy amount of debris. ], The proposed MAHC is not the first attempt to propose a uniform aquatic health code. The 1921 report, barely a few pages in length, made this reference to the need to clean the pool: Pool cleaning is done by completely emptying the pool an average of twice weekly and scrubbing with stiff brushes and soap. Despite their intended and published goals, none became law, uniform, much less national.[17]. ZODIAC is a registered trademark of Zodiac International, S.A.S.U., used under license. The delay timer is an important feature for many pools, as many switch off several circulation pumps during the night to allow suspended particles to settle on the bottom of the pool; after a couple of hours, the pool cleaner begins its cleaning cycle. [12] The brushes, which resemble paint rollers, are located on the front and back of the machine and help remove contaminant particles from the pool's floor and walls (in some designs even the pool steps are included) depending on size and configuration. They closely resemble residential models but in addition to their addition size, they are made with heavy-duty components, more sophisticated computer guidance, and on-and-off systems. The major disadvantage is purchase cost which can range from $1,000 to $1,500. Why Polaris robotic pool cleaners are your best bet. App Store is a service mark of Apple Inc. Google Play is trademark of Google, Inc. All other trademarks referenced herein are the property of their respective owners. Such elements can be sand, diatomaceous earth, zeolite, or other natural or synthetic materials. The 1923 report of the American Journal of Public Health, Sanitary Engineering Section American Public Health Association read before the Sanitary Engineering Section of the American Public Health Association at the Fifty-second Annual Meeting at Boston, Massachusetts, October 8, 1923. slightly longer, but still very brief, stated: Section 3. Since the focus of the MAHC was to respond to the threat of Cryptosporidium the Technical Committee of Recirculation Systems and Filtration is a major focus. Cleaning devices shall not be used while the pool is open to bathers. J. Lepage P. Rouvroy D, Vandepitte, J "Cryptosporidium spp., a frequent cause of diarrhea in Central Africa Bogaerts". Over the next 20 years his invention was revised multiple times. Thats how easy it is to use a robotic pool cleaner. Visible dirt on the bottom of a swimming pool shall not be permitted to remain more than 24 hours. Please type an address. everything from larger debris to stuck-on grime. When the system is plumbed in, the vacuum fittings shall be located to allow cleaning the pool with a 50-foot maximum length of hose. An automated pool cleaner is a vacuum cleaner that is designed to collect debris and sediment from swimming pools with minimal human intervention. Join pool owners around the world, already enjoying their clean pool and their free time. Weve simplified pool cleaning with our durable suction-side pool cleaners that vacuum up dirt and grime into your pools filtration system. and the Conference of State Sanitary Engineers, presented to the Public Health Engineering Section of the American Public Health Association at the Fifty-sixth Annual Meeting at Cincinnati, Oct. 18, 1927, 'Recommended Practice for Design, Equipment, and Operation of Swimming Pools and Other Public Bathing Places' Prepared by the Joint Committee on Bathing Places of the Conference of State Sanitary Engineers and the Engineering and Sanitation Section of the American Public Health Association 1957, American Journal of Public Health, Sanitary Engineering Section American Public Health Association, Volume 11, April 1912, Issue 4, Read at the annual meeting of the Association, held in Havana, December 1911, American Journal of Public Health, Sanitary Engineering Section American Public Health Association, Sanitary control of a public swimming pool George W. Simons, Jr., Chief Sanitary Engineer, Florida State Board of Health, Jacksonville, FLA., Read before Sanitary Engineering Section, American Public Health Association, at San Francisco, Cal. As a result, in 2007 they began to consolidate a uniform aquatic health code. Some machines have delayed timers that cause the robot to remain at the waterline, where more dirt accumulates, to momentarily scrub. They use a low-voltage power source, making installation easy and energy costs lower. [9], There are three main types of automated or automatic swimming pool cleaners, classified by the drive mechanism and source of power used: a suction side cleaner, a pressure side cleaner, and an electric robotic cleaner.[10][11]. None of the proposed Standards included more than a passing reference of the need to properly clean a pool. In 1926 it published its first comprehensive report in its journal: "Standards for Design, Construction, Equipment, and Operation for Swimming Pools and Other Public Bathing Places". That particle size ranges from under 5 m for diatomaceous filters to 50+ m for sand filters. Built on Polaris expertise, the Polaris 3900 Sport delivers the most technologically advanced pool cleaner on the market. [16], In 1918, a committee on swimming pools was appointed at the APHA's annual meeting in Chicago and a similar committee was appointed at the meeting in Washington, D.C., two years later. In the US, commercial pool cleaners need to be certified by the National Spa Pool Foundation (NSPF) as Certified Pool Operators (CPO). September 17, 1920 Report of the committee on bathing places Read before the Sanitary Engineering Section of the American Public Health Association at the Fiftieth Annual Meeting, New York City, November 17, 1921, and adopted by a vote of the Section, 2010 Title 24, Part 2, Vol. These cleaners are independent of the pool's main filter and pump system and are powered by a separate electricity source, usually in the form of a set-down transformer that is kept at least 10 feet (3.0m) from the pool. Wondering which is the best pool cleaner for your needs? The major benefits of these machines are efficiency in time, energy, and cleaning ability and low-maintenance requirements and costs. The Polaris PCX 864 delivers enhanced maneuverability and advanced Double Helix brushes in the front and rear for superior debris collection with vigorous scrubbing of your pool floor, walls and waterline. Bag type cleaners that operate as ejectors on potable water supply pressure must be protected by a vacuum breaker. Please try another location. [15] The AHPA referred to its report in 1964 as "Suggested Ordinance and Regulations Covering Public Swimming Pools", with a modified one for "Private Swimming Pools" in 1970. internal debris receptacle. [13], There have been attempts for nearly 100 years to mandate the use of pool cleaners, primarily addressed to public pools. Delaunay A. Gargala, G, Li X, Favennec, L, Ballet JJ, "Quantitative Flow Cytometric Evaluation of Maximal Cryptosporidium Parvum Oocyst Infectivity in a Neonate Mouse Model". When a suction cleaner is to be operated by the recirculation pump, a gate with a graduated stem or another registering device should be provided for throttling the flow from the pool outlet to permit the pump to operate at maximum efficiency when the suction cleaner is in use. Learn More About Pressure-Side Pool Cleaners, Learn More About Suction-Side Pool Cleaners, Captures debris before reaching the filter, Works seamlessly with the pool filtration system. The suction action of the pool's pump provides the needed force for the machine to randomly traverse the floor and walls of the pool, extracting dirt and debris in its path. If you wish to learn more, you may visit our cookies-policy. many are app-enabled to make cleaning your pool even more convenient with control 2 California Building Code. The American Public Health Association (APHA) recognized the dangers of improperly maintained aquatic facilities and formed a committee in 1918 that, for the next 66 years, issued eleven "Swimming Pools and Other Public Bathing Places Standards For Design, Construction, Equipment And Operation" recommended ordinances and regulations. [4] Two years later, the "Automatic Swimming Pool Cleaner" was created by Andrew L. Pansini; it was the first truly automatic pool cleaner and was touted by Pansini as "effective to remove the scum, dirt and other accumulations from both the bottom and sidewalls of a pool to disperse foreign matter in the water for removal therefrom by a normal pump-filter system of the pool". We've detected that JavaScript is not enabled in your browser. On November 26, 1912, he submitted a patent application to the United States Patent and Trademark Office entitled "Cleaning Apparatus For Swimming Pools And The Like", which was issued on March 25, 1913. Capet C. Kapel N, Huneau JF, Magne D, Laikuen R, Tricottet V, Benhamou Y, Tome D, Gobert JG "Cryptosporidium par-vum Infection in Suckling Rats: Impairment of Mucosal Permeability and Na+-Glucose Cotransport". Make the most of your pool with our budget-friendly, best-value Dolphin range. Plug it in and drop it in. Our commercial Dolphins are designed to handle any size, shape, and condition with their powerful, heavy-duty capabilities. Of all of its reports from 1920 through 1981, the first major report by the APHA in 1926, written in narrative form as were the succeeding nine until 1957, the committee included the detailed provisions relating to pool cleaning, vacuuming and vacuums: E. Suction Cleaner: In the opinion of the committee the only satisfactory method of removing the dirt, hair, etc., settling on the bottom of a pool is using a suction cleaner. Vacuum fittings shall be mounted no more than 15 inches below the water level, flush with the pool walls, and shall be provided with a spring-loaded safety cover which shall be in place at all times. The purchase cost of this type of cleaner range from $200 to about $700 plus the costs of the booster pump, usually over $200. There are minimal maintenance and part replacement costs on these devices over time. Suction pool cleaners are a terrific option for cleaning pools with mainly fine or sandy debris. Polaris robotic cleaners are automatic and They are also better for large debris such as leaves, acorns, and sticks. The price of suction-side cleaners ranges from $100 to $300. This type of cleaner is usually attached via a 1.5-inch hose to a vacuum plate in the skimmer, or a dedicated extraction or "vac" line on the side of the pool. Each model is masterfully crafted to provide incomparable pool scrubbing and cleaning, with a cutting-edge water filtration system, and the best warranty on the market. 2001-2002. No swimming pool shall be opened to the use of bathers on any day until all visible dirt (not stains) on the bottom of the pool and any visible scum or floating matter on the surface has been removed.